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A. Bhattacharya
Fig. 11.12 Comparison of systems with 75% porosity and 50% porosity. a Variation of energy
absorption with time. b Variation of overall melt fraction with time
absorption is higher as the total volume of PCM is higher for this system. Higher
heat transfer rate with lower porosity of metal foam has been previously observed
experimentally by Lafdi et al. (2007).
11.5.5 Effect of Pore Size
To study the effect of pore size, two systems are considered with varying pore
sizes. The geometry for the first system is generated with a pore radius (r) range
of 0.5–3.0 cm while for the second system, the geometry is created with a pore
Fig. 11.13 Geometries generated for a pore size 0.5 < r < 3 cm; b pore size 0.5 < r < 1 cm (red
represents the metal foam and blue represents the PCM)
A. Bhattacharya
Fig. 11.12 Comparison of systems with 75% porosity and 50% porosity. a Variation of energy
absorption with time. b Variation of overall melt fraction with time
absorption is higher as the total volume of PCM is higher for this system. Higher
heat transfer rate with lower porosity of metal foam has been previously observed
experimentally by Lafdi et al. (2007).
11.5.5 Effect of Pore Size
To study the effect of pore size, two systems are considered with varying pore
sizes. The geometry for the first system is generated with a pore radius (r) range
of 0.5–3.0 cm while for the second system, the geometry is created with a pore
Fig. 11.13 Geometries generated for a pore size 0.5 < r < 3 cm; b pore size 0.5 < r < 1 cm (red
represents the metal foam and blue represents the PCM)